中国东部海区科学钻探工程CSDP-02井钻探效率统计分析

Statistical analysis of drilling efficiency for Well CSDP-02 of the eastern sea scientific drilling project of China

摘要:

CSDP-02井是中国东部海区科学钻探工程2井，该井采用五开结构，完井井径98 mm，完井井深2843.18 m，历时504 d，创造了海洋科学钻探全取心井深世界纪录。本文介绍了该井的施工过程，对该井的钻进时间、钻探效率和回次进尺长度进行了系统的统计与分析。通过分析，对影响海上深部科学钻探效率的海况、后勤保障等因素进行了简单的阐述，为提高海上深孔钻探施工效率提供了参考依据。

Abstract:

Well CSDP-02 is the second well of the eastern sea scientific drilling project of China. The well was completed in 504 days with the five-section structure, at completion diameter of 98mm, and depth of 2843.18m, setting the world depth record in marine scientific full borehole core drilling. This paper introduces the drilling process of the well. The drilling time, drilling efficiency, and footage per run of the well are systematically summarized and analyzed. Based on the analysis, the factors affecting the deep offshore drilling efficiency, such as sea conditions and logistical support, are briefly expounded, which provides reference for improving the deep offshore drilling efficiency.